Page 138 - Scratch Programming Playground
P. 138
Make the Paddle Flash When Hit
In this step, you’ll make the paddle flash different colors when
it is hit by the ball. add the following code to the Paddle sprite.
The bounce message is broadcast when the Tennis Ball
sprite bounces off a Brick clone and when it bounces off the
Paddle sprite. The if distance to Tennis Ball < 60 block
makes the color changes happen when the Tennis Ball sprite
bounces off the Paddle sprite (which means the ball will be
less than 60 steps away).
save Point
Click the green flag to test the code so far. make sure the
paddle flashes different colors when the ball bounces off it.
Then click the red stop sign and save your program.
Add an Animated Entrance and Exit to the Bricks
The Brick clones’ entrance to the game is rather boring.
They just appear as soon as they’re cloned. To animate their
entrance, modify the Brick sprite’s code to match this code.
112 ChapTer 5
